Participation in international congresses and symposia:

• 14th Congress of CBGA (Carpathian-Balkan Geological Association), Sofia, Bulgaria September 1989;
• Bulgarian-Greek Symposium, Thessaloniki, Greece, October 1989.
• CIMP Symposium, Nottingham, Great Britain, September 1991;
• CIMP Symposium, Sheffield, Great Britain, September 1994;
• Symposium The petroleum Geology and Hydrocarbon Potential of the Black Sea area, Varna, Bulgaria, October 1994.
• IGCP 351 Meeting “Early Paleozoic evolution of NW Gondwana”, Ankara, Turkey, September 1995.
• Second International Symposium on the Geology of the Eastern Mediterranean Region, Jerusalem, Israel, August 27-September 1, 1995.
• CIMP Symposium of the Acritarch Subcommission, Prague, Czech Republic, April 1996.
• Final Meeting of IGCP Project 362 “Tethyan and Boreal Cretaceous”, Stara Lesna, Slovakia, September 1997.
• Final Meeting of Project 343 IGCP “Stratigraphic correlation of peri-Tethyan epicratonic basins”, September 2-8, 1996, Damascus, Syria.
• Carpathian Geology, Smolenice, Slovakia, September 1999;
• Congresso Iberico de Paleontologia / 8th International Meeting of IGCP Project 421, Evora, Portugal, October 2000.
• 15th International Senckenberg Conference - Joint Meeting of IGCP 421/SDS, Frankfurt am Main, Germany, May 2001.
• 5th ISEGM, Thessaloniki, Greece, April 2004.
• Symposium and workshop on the Early Palaeozoic orogens of the Trans-European Suture Zone, 9-11 October 2004, Ghent/Ronse, Belgium.
• IGCP 499 Meeting in Istanbul, Turkey, October 2005;
• IGCP 503 Meeting, Glasgow, Scotland, August - September 2006;
• 7th International Congress of the Jurassic System, Krakow, Poland, September 2006;
• CIMP Symposium (Chitinozoan, Acritarch and Spore Subcommissions), Prague, Czech Republic, September 2006.
• IGCP 499 Field Meeting, San Juan, Argentina, May 2007;
• First International Meeting on CCMM, Vienna, Austria, April 2008;
• Final Meeting IGCP 497 and IGCP 499, Frankfurt am Mein, Germany, October 2008;
• 8th Symposium of IGCP project 506 “Marine and non-marine Jurassic”, Buchrest, Romania, August 2009
• 19th Congress of Carpathian-Balkan Geological Association, Thessaloniki, Greece, September 2010
• 3rd International Symposium on the geology of the Black Sea region, Bucharest, Romania, October 2011
• 7th Meeting of the Berriasian Working Group, Sofia, Bulgaria, October 2011
• 8th Meeting of the Berriasian Working Group, Prague, Czech Republic, October 2012

  Национални конференции:

• Втора национална младежка школа по геология, София, ноември 1987;
• Юбилейна конференция „50 години ГГФ, СУ „Св. Климент Охридски”, София, 1997;
• Юбилейна конференция „55 години Геологически институт при БАН, София, 2002
• Юбилейна национална конференция „80 години Българско геологическо дружество”, София 2005;
• Юбилейна научна конференция „60 години Геологически институт при БАН”, София, 2007;
• Национални конференция „Геонауки”, София, 2009, 2010, 2012.